Hidden Cheat Menu
On the main title screen where you have 4 options New Game, Load Game, Options, Exit. Instead of clicking on any of them press these buttons all at the same time.
[Ctrl] + [Q] + [L] + [K]
This will bring up a black screen. Type in lower case:
richen
hit [Enter] and you will hear the main characters voice say something so you know you entered it correctly.
Now either load your game or start a new game with cheat menu enabled.
Press [F9] in game - Edit characters stats
Press [F6] in game - Edit item numbers
Press [F5] in game - Enter incident number
Press [F8] on world map - Go into a battle